12
English
MS 381
The felling notch
(C)
determines the
direction of fall.
:
Make the horizontal cut – check the
direction of fall with the gunning
sight.
:
Make angle cut at about 45°.
:
Check the felling notch and correct it
if necessary.
Important:
–
Felling notch at a right angle to the
planned direction of fall.
–
As close to ground as possible.
–
Cut to a depth of about
1
/
5
to
1
/
3
of
the trunk diameter.
Sapwood cuts
Sapwood cuts in long-fibered softwood
help prevent sapwood splintering when
the tree falls. Make cuts at both sides of
the trunk at same height as bottom of
felling notch to a depth of about
1
/
10
of
trunk diameter. On large diameter trees,
cut to no more than width of guide bar.
Do not make sapwood cuts if wood is
diseased.
Felling
Shout a warning before starting the
felling cut.
–
Make the felling cut (
D
) slightly
higher than bottom of felling notch.
–
Cut horizontally.
–
Leave approx.
1
/
10
of tree diameter
uncut between felling cut and felling
notch. This is the hinge.
001BA143 KN
C
C
001BA150 KN
001BA144 KN
D
D